US2537445A

US2537445A - Abrasive dispenser for stonecutting saws

Info

Publication number: US2537445A
Application number: US64514A
Authority: US
Inventors: Joseph E Couture
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-12-10
Filing date: 1948-12-10
Publication date: 1951-01-09
Anticipated expiration: 1968-01-09

Description

J 1951 J. E. COUTURE 2,537,445

ABRASIVE DISPENSER FOR STONE-CUTTING SAWS Filed Dec. 10, 1948 v 5 Sheets-Sheet l WW EM Jan. 9, 1951 J. E. COUTURE ABRASIVE DISPENSER FOR STONE-CUTTING SAWS 3 Sheets-Sheet 2 Filed Dec. 10, 1948 Fig.2.

r 0 t n e w I Joseph E. Couture mug away EMg Jan. 9, 1951 J COUTURE 2,537,445

ABRASIVE DISPENSER FOR STONE-CUTTING SAWS Filed Dec. 10, 1948 Sheets-Sheet 5 Fig. 3. 64

76 ow Ta -70 I 68 s 72 o 98 Ill 'ylOZ In (L J 94 /00 50 4 [I 2 a4 52 I /a 93 Fig. 4

Inventor Josep h E. Couture Wynn 8y:

Patented Jan. 9, 1951 v UNITED STATES PATENT OFFICE;

enmsrvn DISPENSER ron srouc oor'rmo sews Joseph E, Couture, South Barre, Vt; Application December 10, 1.948, SerialNot 6461Av This invention relates generally to stone cutting machines and more particularlyto dispensing means for the abrasive used to accelerate the cutting action of the saws.

A primary objectof this invention is to provide dispensing means for abrasive for use in com nection with stone cutting saws, whereby the abrasive will be uniformly distributed to the different saw blades in a gang saw such as usually employed in these machines. Another object of this invention, closely allied to the preceding object, is to accelerate the speed with which stone maybe cut, the uniform distributionof abrasive tothe different saw blades being reflected in increased cutting speed of the machine.

Still another object of this invention of a spe cific nature, is to provide a rotary hopper with means to charge sol-id abrasive intoone end andmeans to allow overflow of solid abrasive mixed with a water carrier" from the other end of the rotating hopper; the feed outlets being positioned intermediate the ends of the rotary hopper, and this construction permitting an assured ample charging of the hopper atall times during operationv without the necessity of providing extremely accurate metering meansi sun another object of this invention. also of a specific nature, is toprovide a rotary spout; which by virtue of its rotation and the general arrangethereof with the other elements of the machine will not become clogged and will assure even distribution of the abrasive, the rotary spout being used. conjunction with a fixed aperturee distributor head and a plurality of adjustable distributor tu-bes leading from the distributor headto the different saw blades.

3 Claims.- (01.125 12? 2 "Figure Z'is an end elevational viewof'the asksembled machine, as viewed from the left hand side of Figure I; Figure 3- is an enlarged fragmentary detail view of vertical sectional character and" taken; sub

stantially upon the line 3'3 of Figure 1.;

Figure 4 is a horizontal sectional view taken on a line 4 of Figure 3}. with the emf of the rotary spout being removed; and,

Figure 5 is a three dimensional view of the part hereinafter referred to as the collector chute.

Similar characters of reference, designate simi lar or identical elements and portions throughout the specification and throughout the different views in the drawings.

Referring now to the drawings in detail, this in? 1 vention is adapted to be used with an environment including power drive means diagrammatically indicated at [II and including. a pitmah l2 pivoted on a gang saw frame. The frame [4' is mounted 'by means'of a plurality of links IE on uprights [8 in the main frame of the machine,

Yet another object of this invention is to provide improved means for returning used abrasive to the distributor means while by-passing the rotary happen 1 And a last obiect to be mentioned specifically is to provide dispenser means for abrasive for use with many different types oi stone cutting saws, which will be inexpensive and practicable to manufacture, simple to use, and which will give. generally efficient and durable service.

With these objects definitely in: view, this invention resides in certain novel. featuresof construction, combination. and. arrangement of elements and portions as will be hereinafter described in detail in the specification, particularly pointed out in theappen-deci claims, and illustrated in the accompanying drawings which form amaterial part of this application, and in which:

Figure 1 is a side elevational view of the assembled machine;

partially through the stone which main. frame may be embedded. in. a. concrete foundation- 20 The foundation Zil be provided with a pit 22 in which are mounted rails 24 to carry a trolley 26. The trolley 25 supports I the'stone 23 to be cut into slabs and. Figure? represents this stone as being partiall cut and as having a plurality of. saw

A pair of traveler blocks 3? are threadedly as? sociated' with vertically disposed and threaded rods 34 whichv are journaled in the vertical meme bers' 18 of the main frameof the machine and which are provided. with sprocket wheels at their top ends for coaction with an endless chain 36; so that the two rods will be rotated. simultaneously by means of a pair of bevel gears 38 driven by adouble pulley 411 and. av belt 42, whichbelt will be understood. to be operatively connectert with suitable power means.

All. the foregoing: structure can be varied considerably from that described and illustrated. herein, and. the principal features of this invenition. are capable of incorporation and use with many different types.- of machines which may considered. as merely exemplified by the machine described above. The chief features of this in ventionmay be considered as related to the rotary hopper generally indicated at M, the collector chute 46, tunnel. 48 andv rotary spout 5G, together with. the fixed distributor head 5'2, clis-,,

tributor tubes 54', each of which will be described 7 kerts 31! extending ing to the rotary hopper 44. Another pipe 62, with its branch pipes 63, is used to initially admit water directly to the collector chute 46, this pipe 62 having a control valve 65. The other main features of this invention include the tubular means 64 used for initially charging the rotary hopper 44 with solid granulated abrasive, and the overflow collector chute 66 at the opposite end of the rotary hopper, this last mentioned element 66 communicating with an overflow outlet in the rotary hopper, this overflow outlet being considered an important feature of this invention.

Referring now to certain details of construction, it may first be noted that the rotary hopper 44 is a hollow cylinder, inclined slightly to the horizontal and mounted for rotation about its longitudinal axis on a drive shaft 68 which is journaled in brackets I supported on the main frame of the machine and which is driven by a pulley i2 and a belt I4 connected to suitable power means, thought unnecessary to be illustrated in this application. One end of the hopper 44 is apertured as at IE to receive the lower end of the tubular member 64 used to charge the rotary hopper with granulated solid abrasive, while the opposite end of the rotary hopper is apertured at it to provide what will be referred to as the overflow outlet for the hopper. Intermediate the ends of the hopper there are provided a plurality of feed outlets 89 which are circumferentially disposed on the hopper and aligned with the collector chute 46.

Therotary spout 50 is rigidly secured to the funnel 48 andto a drive pulley 82 which is represented as driven by a belt 84 connected to asource of power which is thought unnecessary to be illustrated. The funnel 48 receives abrasive and water from the collector chute 46 and the lower end of the rotary spout distributes this mixture to the distributor head 52 which may be constructed of two concentric

vertical wall members

85 and 86 with radially disposed vertical walls 88 therebetween, and a plurality of short vertical outlet tubes 90 leading from a plurality of funnel-shaped floor panels 92, best shown in Figure 3. The inner vertical wall 86 may be further supported by a spider 93, and the distributor head SImay-be supported as a unit by a plurality'of depending brackets 94 secured to suitable cross frame members 95 and 98 and angle members I011. The rotary spout is journaled in a bearing I02 carried by further cross members I04 which are supported by the frame members 96, and the drive pulley 821 may seat upon the upper end or" the bearing I02. The tubes 54 are secured to the lower ends of the outlets 90 and these tubes may be flexible and adjustable so that the same may be shifted as desired to direct the abrasive to the different saw blades.

It will, be noted that each of the collector chutes 4'6 and 6B are'generally semi-circular in form and enclose lower portions of the rotary hopper 44. These chutes are rigidly secured by suitable brackets on the main frame of the machine, and the overflow outlet 18 communicates through the second collector chute 66, so that overflow abrasive and water will be directed into the pit 22 or into any suitable catch basin provided, according to the preferred method of operation as related. to the particular conditions under which themachine is being used. In any event, the provision ,of the overflow outlet 18 assures that the rotary hopper can be maintained with a level of abrasive therein suflicient to make certain that the abrasive will be dispensed uniformly from the rotary hopper, thereby assuring uniform operation of the machine.

The operation of this machine will be clearly understood from a consideration of the foregoing description of the mechanical details thereof, taken in connection with the drawings and with the above recited objects of the invention. Further description would, therefore, appear to be unnecessary.

Obviously minor variation from the details of construction of the disclosed embodiment may be resorted to without departure from the spirit and scope of this invention, and the invention should be determined as limited only by a proper interpretation of the terms used in the subjoined claims.

Having described the invention, what is claimed as new is:

1. An abrasive dispenser for a stone cutting saw, comprising a rotating hopper having feed outlets and an overflow outlet, distributor means to conduct abrasive from said feed outlets to the saw, means to return abrasive escaping from said overflow outlet to said hopper by-passing said distributor means, whereby abrasive moves through said hopper in greater volume than through said distributor means to assure ample and uniform supply to said distributor means, said distributor means including a rotary spout mounted for rotation about a vertical axis and receiving abrasive from said feed outlets, and a plurality of adjustable tubes having their upper ends arranged in a circle to receive abrasive from said rotary spout.

2. A dispenser according to claim 1 and including a collector chute partially surrounding said rotating hopper adjacent said feed outlets, and a funnel on the upper end of said rotary spout to receive abrasive from said collector chute.

3. An abrasive dispenser for a stone cutting saw, comprising a rotating hopper having feed outlets and an overflow outlet, distributor means to conduct abrasive from said feed outlets to the saw, means to return abrasive escaping from said overflow outlet to said hopper by-passing said distributor means, whereby abrasive moves through said hopper in greater volume than through said distributor means to assure ample and uniform supply to said distributor means, a collector chute partially surrounding said rotating hopper adjacent said feed outlets, said distributor means including a rotary spout mounted for rotation above a vertical axis and receiving abrasive from said feed outlets a funnel on the upper end of said rotary spout to receive abrasive from said collector chute, a water pipe leading directly into said collector chute from an outside source, and means to collect and to return used abrasive and water to said collector chute for re-use, said pipeand last mentioned means both by-passing said rotary hopper.

. JOSEPH E. COUTURE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Y Date 381,999 Hawley May 1, 1888 971,746 Hanson et al Oct. 4, 1910- 1,853,611 Healy Apr. 12, 1932'